Puncture apparatus

ABSTRACT

A puncture apparatus includes a puncture needle for puncturing living body tissue, an axial portion, a puncture member including an interlock portion interlocking the puncture needle and the axial portion, an elongated urethral-insertion member insertable into the urethra, an elongated vaginal-insertion member insertable into the vagina; and a supporting member supporting the puncture member, the urethral-insertion member and the vaginal-insertion member. The distal end of the puncture needle includes a sharp needle tip, and the needle is bent in an arc shape centered on the axial portion. The axial portion is freely rotatable on the supporting member, and the supporting member restricts the positional relation between the puncture member and the urethral-insertion member such that when the puncture member rotates and punctures the living body tissue, the needle tip passes a far-position side from the center of the puncture needle compared with the urethral-insertion member or an extended line of such member.

CROSS REFERENCES TO RELATED APPLICATIONS

This application contains subject matter disclosed in U.S. ApplicationNo. 61/744,744 filed on Oct. 3, 2012 and Japanese Patent Application No.2012-068400 filed in the Japanese Patent Office on Mar. 23, 2012, theentire content of both of which is incorporated herein by reference.

TECHNOLOGICAL FIELD

The present invention generally relates to a puncture apparatus.

BACKGROUND DISCUSSION

When suffering from a urinary incontinence, in particular, whensuffering from a stress urinary incontinence, urine leakage occurscaused by the fact that abdominal pressure is applied during a normalexercise or is applied by laughing, coughing, sneezing and the like. Forthis reason, it is possible to cite, for example, a fact that the pelvicfloor muscle which is a muscle for supporting the urethra will loosencaused by a child-bearing or the like.

For the treatment of urinary incontinence, a surgical treatment iseffective, in which there is used, for example, a tape-shaped implantreferred to as “sling”. The “sling” is implanted into the body and theurethra is supported by that sling. An example of this is disclosed inU.S. Pat. No. 6,911,003. In order to indwell the sling inside the body,an operator incises the vagina with a surgical knife, dissects a regionbetween the urethra and the vagina, and communicates that exfoliatedregion and the outside through an obturator foramen by using a punctureneedle or the like. Then, in such a state, the sling is implanted intothe body.

However, if the vagina is once incised, there is a fear that thereoccurs a phenomenon in which the sling will be exposed to the inside ofthe vagina from a wound caused by the incision thereof, and there is afear that complications may occur which are caused by an infection fromthe wound or the like. In addition, since the vagina is incised, theinvasiveness of the procedure is rather great and the burden on thepatient is large. In addition, there is a fear that the urethra or thelike will be damaged in the course of the procedure by the operator, andalso, there is a fear that the operator himself will damage his fingertip.

Also, like urinary incontinence, there exists a pelvic organ prolapse asanother disorder from which a woman suffers. This disorder is a disorderin which a pelvic organ such as a uterus, a bladder or the likesupported in a hammock shape by a pelvic floor muscle group is prolapsedfrom the vagina caused by the weakening of the pelvic floor musclegroup, which can be caused by old age or the like and this is referredto also as a so-called hysterocele or as a cystocele or a rectocele. Arepairing method for this pelvic organ prolapse has, in the past,involved a vaginal-wall shortening surgery (colporrhaphy) in which thevaginal wall was incised and the loosened tissue existing between theprolapsed organ and the vaginal wall is partially removed, sutured andshortened. But in recent years, as an alternative technology for thatsurgery, there has been employed a TVM (Tension-free Vaginal Mesh)surgery and it became possible to prevent the deviation of the pelvicorgan from the vagina with lower invasion and also effectively bysupporting the prolapsed organ in a hammock shape with apolypropylene-made mesh. An example of this alternative is described inU.S. Pat. No. 7,131,943.

However, like in the treatment of urinary incontinence, when the vaginais incised and the mesh is indwelled, there is a fear that there occursa phenomenon in which the sling will be exposed to the inside of thevagina from a wound caused by the incision thereof, and there is a fearthat there occur complications which are to be caused by an infectionfrom the wound or the like. In addition, since the vagina is incised,the invasiveness of the procedure is rather significant, and the burdenon the patient is large. In addition, there is a fear that the urethraor the like will be damaged in the course of the procedure by theoperator, and also, there is a fear that the operator himself willdamage his finger tip.

SUMMARY

According to one aspect, a puncture apparatus includes a freelyrotatable puncture member possessing a distal end portion and a proximalend portion, wherein the puncture member includes a bent region at whichthe puncture member is bent, with the distal end portion of the puncturemember including a puncture needle for puncturing living body tissue asthe puncture member is rotated about a rotation center to rotate aneedle tip of the puncture needle toward the living body tissue topuncture the living body tissue. The puncture apparatus also includes anelongated urethral-insertion member configured to be inserted into aurethra so that a near-side of the urethral-insertion member is the sideof the urethral-insertion member located closer to the rotation center,and a far-side of the urethral-insertion member is the side of theurethral-insertion member located farther from the rotation center. Thepuncture apparatus also includes restriction means for restricting apositional relationship between the puncture member and theurethral-insertion member so that the needle tip of the puncture needlewhich is rotating about the rotation center after first puncturing theliving body tissue passes on the far-side of the urethral-insertionmember.

The puncture apparatus here is able to reduce the burden on the patient,while providing a high degree of safety to both the patient and theoperator.

The puncture apparatus preferably also includes an elongatedvaginal-insertion member which is insertable into a vagina, wherein therestriction means restricts the positional relation between the puncturemember and the vaginal-insertion member such that the needle tip of thepuncture needle will not interfere with the vaginal-insertion memberwhen the puncture member moves rotationally and punctures the livingbody tissue.

It is preferable that the puncture member includes an axial portionwhich forms a rotational axis for the rotary movement, wherein therestriction means supports the axial portion in a freely rotatablemanner, and concurrently includes a supporting member that supports theurethral-insertion member.

The puncture apparatus preferably also includes an elongatedvaginal-insertion member, wherein the puncture member includes an axialportion forming a rotational axis for the rotary movement, and therestriction means restricts the positional relation between the puncturemember and the vaginal-insertion member such that the needle tip of thepuncture needle will not interfere with the vaginal-insertion memberwhen the puncture member moves rotationally and punctures the livingbody tissue. The restriction means supports the axial portion in afreely rotatable manner, and concurrently includes a supporting memberthat supports the urethral-insertion member and the vaginal-insertionmember respectively.

The puncture member is preferably freely detachable with respect to thesupporting member. The axial portion can be supported by the supportingmember movably in the axial direction of the urethral-insertion member.

In the puncture apparatus, the puncture member which is placed in afreely rotatable manner includes an axial portion connected to thepuncture needle, and the axis line of the axial portion is inclined withrespect to the axis line of the urethral-insertion member such that thedistance of separation between the axis line of the axial portion andthe axis line of the urethral-insertion member increases or decreasestoward the distal side.

The puncture member can preferably include an operation unit foroperating the puncture member rotationally. And the puncture needle caninclude a through-hole at the distal portion of the puncture needle.Also, the urethral insertion portion can be in a tubular shape. Thepuncture apparatus can also include a guide member for guiding thepuncture needle.

According to another aspect, a puncture apparatus includes a freelyrotatable puncture member, an elongated insertion member, and arestriction structure. The puncture member includes a bent region atwhich the puncture member is bent, and the distal end portion of thepuncture member includes a puncture needle for puncturing living bodytissue as the puncture member is rotated about a rotation center torotate a needle tip of the puncture needle toward the living body tissueto puncture the living body tissue. The elongated insertion member isconfigured to be inserted inside a living body so that a near-side ofthe insertion member is the side of the insertion member located closerto the rotation center, and the far-side of the insertion member is theside of the insertion member located farther from the rotation center.The restriction structure is configured to restrict a positionalrelationship between the puncture member and the insertion member toposition the needle tip of the puncture needle which is rotating aboutthe rotation center after first puncturing the living body tissue on thefar-side of the insertion member.

It is preferable for the insertion member to be a tubular-lumeninsertion member which is insertable into a tubular lumen opened in theliving body. And it is preferable for the insertion member to be atissue-insertion member configured to be implanted into the tissue bybeing punctured from the surface of the living body. The insertionmember can have a depth marker by which the insertion depth is visuallyrecognizable or a marker which is visually recognizable under anoninvasive monitoring inside the body.

Another aspect of the disclosure here involves a method of forming apath for implanting an implant in order to treat a urinary incontinence.The method involves preparing a freely rotatable puncture member whichincludes a bent region and which includes a puncture needle forpuncturing living body tissue, an elongated urethral-insertion memberwhich is insertable into a urethra, and restriction means forrestricting the positional relation between the puncture member and theurethral-insertion member such that the needle tip of the punctureneedle will pass on the far-position side from the rotation center ofthe puncture needle relative to the urethral-insertion member when thepuncture member rotates and punctures the living body tissue;

The urethral-insertion member is inserted into the urethra of a patient,and the puncture needle of the puncture member is made to puncture abody surface at one interlock region of the patient or at the region inthe vicinity of such region, made to enter into the body, made to passan obturator foramen of one pelvis, made to pass the far-position sideof the urethra, made to pass an obturator foramen of the other pelvisand made to protrude to the outside of the body from the body surface ofanother interlock region or from the region in the vicinity of suchregion, whereby there is formed a through-hole reaching the anotherinterlock region or the region in the vicinity thereof from the bodysurface at the one interlock region or at the region in the vicinity ofsuch region by way of the obturator foramen of one pelvis, thefar-position side of the urethra and the obturator foramen of the otherpelvis.

According to another aspect, a method of forming a path in biologicaltissue of a living body comprises inserting an elongated insertionmember of a puncture apparatus into a portion of a living body, whereinthe puncture apparatus also includes a rotatable puncture memberpossessing a distal end portion at which is located a needle tip,rotating the puncture member in a rotational direction about a rotationcenter while the insertion member remains inserted in the living body tomove the puncture member along a path of rotational movement, with theportion of the living body into which the insertion member is insertedbeing located relative to the rotation center of the path of rotationalmovement of the puncture member such that a near-side of the insertionmember is the side of the insertion member located closer to therotation center, and a far-side of the insertion member is the side ofthe insertion member located farther from the rotation center. Themethod additionally involves continuing to rotate the puncture member inthe rotational direction about the rotation center while the insertionmember remains inserted in the living body to cause the needle tip topuncture a surface of the living body tissue, and restricting apositional relationship of the puncture member and the insertion memberwhile rotating the puncture member in the rotational direction to ensurethat the path of rotational movement of the puncture member passes onthe far-side of the insertion member.

Also disclosed is a method of forming a path for implanting an implantin order to treat a urinary incontinence, wherein there is prepared afreely rotatable puncture member which includes a bent region and apuncture needle for puncturing living body tissue, and when the puncturemember is moved rotationally and the puncture needle of the puncturemember punctures the living body tissue, the puncture needle is made topuncture a body surface at an interlock region of the patient or at theregion in the vicinity of such region, is made to enter into the bodyand is made to pass an obturator foramen of a pelvis; and the puncturemember is made to pass a far-position side from the rotation center ofthe puncture needle compared with the urethra, whereby the path isformed.

Another aspect involves a method of forming a path for implanting animplant in order to treat a urinary incontinence. The method includespreparing a puncture tool provided with a urethral-insertion memberhaving a longitudinal shape, which is to be inserted into a urethra, anda puncture member which can puncture the living body tissue and whichhas such an orbit passing a far-position side compared with theurethral-insertion member; inserting the insertion member into a urethraof a patient; and wherein the puncture member is made to puncture into abody from the body surface at an interlock region of the patient or atthe region in the vicinity of such region and made to pass an obturatorforamen of a pelvis; and the puncture member is made to pass afar-position side compared with the urethral-insertion member, wherebythe path is formed.

According to another aspect, a method of forming a path for implantingan implant in order to treat a pelvic floor disorder includes preparinga freely rotatable puncture member which includes a bent region andwhich includes a puncture needle for puncturing living body tissue, andwhen the puncture member is moved rotationally and the puncture needleof the puncture member punctures the living body tissue, the punctureneedle is made to punctured a body surface of a patient and is made toenter into the body; and the puncture member is made to pass afar-position side from the rotation center of the puncture needlecompared with the target region, whereby the path is formed.

Another aspect involves a method of forming a path for implanting animplant in order to treat a pelvic floor disorder, wherein a puncturetool is prepared to be provided with an insertion member having alongitudinal shape, which is to be inserted into a living body, and apuncture member which can puncture the living body tissue and which hassuch an orbit passing a far-position side compared with the insertionmember; the insertion member is inserted into the body of a patient; andthe puncture member is made to puncture into the body from the bodysurface of the patient; and the puncture member is made to pass afar-position side compared with the insertion member, whereby the pathis formed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a first embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here.

FIG. 2 is a cross-sectional view along the section line 2-2 in FIG. 1.

FIG. 3 is a cross-sectional view showing a state in which a ballooncatheter is inserted into a urethral-insertion member of the punctureapparatus shown in FIG. 1.

FIGS. 4A and 4B are views explaining an operating procedure of thepuncture apparatus shown in FIG. 1, with FIG. 4B taken along the sectionline 4B-4B in FIG. 4A.

FIGS. 5A and 5B are views explaining an operating procedure of thepuncture apparatus shown in FIG. 1, with FIG. 5B taken along the sectionline 5B-5B in FIG. 5A.

FIGS. 6A and 6B are views explaining an operating procedure of thepuncture apparatus shown in FIG. 1, with FIG. 6B taken along the sectionline 6B-6B in FIG. 6A.

FIGS. 7A and 7B are views explaining an operating procedure of thepuncture apparatus shown in FIG. 1, with FIG. 7B taken along the sectionline 7B-7B in FIG. 7A.

FIG. 8 is a cross-sectional view explaining an operating procedure ofthe puncture apparatus shown in FIG. 1.

FIG. 9 is a cross-sectional view explaining an operating procedure ofthe puncture apparatus shown in FIG. 1.

FIG. 10 is a cross-sectional view explaining an operating procedure ofthe puncture apparatus shown in FIG. 1.

FIG. 11 is a cross-sectional view explaining an operating procedure ofthe puncture apparatus shown in FIG. 1.

FIG. 12 is a side view of a second embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here.

FIG. 13 is a side view of a third embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here.

FIG. 14 is a side view of a sixth embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here.

FIG. 15 is a side view showing a supporting member of the punctureapparatus shown in FIG. 14.

FIGS. 16A to 16C are views showing a urethral-insertion member of thepuncture apparatus shown in FIG. 14.

FIG. 17 is a view seeing the puncture apparatus from a direction of anarrow 17 shown in FIG. 15.

FIG. 18 is a cross-sectional view along the section line 18-18 in FIG.15.

FIGS. 19A to 19C are cross-sectional views showing another example ofthe puncture member disclosed here.

FIG. 20 is a side view of a fourth embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here.

FIG. 21 is a side view of a fifth embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here

FIGS. 22A to 22C are side views of a seventh embodiment, disclosed byway of example, of a puncture apparatus disclosed here

FIG. 23 is a side view of an eighth embodiment, disclosed by way ofexample, of a puncture apparatus disclosed here

FIG. 24 is a front elevational view showing a puncture member and asecond supporting portion of the puncture apparatus shown in FIG. 23.

FIG. 25 is a front elevational view showing a puncture member and asecond supporting portion of a supporting member in a ninth embodimentof the puncture apparatus disclosed here.

FIG. 26 is a side view showing another example of the puncture apparatusof the present invention.

FIG. 27 is a perspective view showing a puncture member of the punctureapparatus shown in FIG. 26.

DETAILED DESCRIPTION

FIGS. 1-11 illustrate features and operational aspects of an embodimentof the puncture apparatus disclosed here. In FIG. 4B, FIG. 5B, FIG. 6B,FIG. 7B and FIGS. 8-11, the oblique lines for the living body areomitted so as to be more easily viewable. In the description whichfollows, the left side in FIG. 1, FIG. 3, FIG. 4A, FIG. 5A, FIG. 6A,FIG. 7A is the “distal end” and the right side is the “proximal end”.

The puncture apparatus 1 shown in these drawings is an apparatus to beused for the treatment of woman's urinary incontinence. That is, it isto be used when burying an implant (tool implanted into a living body)for the treatment of urinary incontinence inside the living body.

The implant is a buriable tool for the treatment of woman's urinaryincontinence, that is, a tool for supporting the urethra and a tool forsupporting the urethra thereof so as to pull it to the directionseparated from the vaginal wall when, for example, the urethra is goingto move to the vaginal-wall side. For this implant, it is possible touse, for example, a long object having flexibility.

As shown in FIG. 7B, in this embodiment disclosed by way of example, animplant 8 forms an elongated bogy having a mesh-like shape (mesh-shaped)and the overall shape of the implant is a belt-like shape. This implant8 is referred to as a “sling”. It is possible for the implant 8 to beconfigured as an implant braided in a mesh-like shape (lattice shape),for example, by intersecting line shaped bodies, that is, to beconstituted by a braided body having a mesh-like shape. For the lineshaped body, examples include a body whose cross-sectional shape is around shape; whose cross-sectional shape is a flattened shaped, that is,a belt-like shape (ribbon shape); or the like. In addition, at the oneend portion of the implant 8, one end portion of a string 91 is fixedand at the other end portion thereof, one end portion of a string 92 isfixed.

Also, there is no limitation in particular for the material forming theimplant 8, and it is possible to use, for example, various kinds ofresin materials and the like which are biocompatible

Also, there is no limitation in particular for the materials forming thestrings 91, 92, and it is possible to use, for example, various kinds ofresin materials, fibers and the like.

The shape of the implant 8 is not limited to the above-describedmesh-like shape.

As shown in FIG. 1 and FIG. 2, the puncture apparatus 1 includes apuncture member 3, a urethral-insertion member 4 possessing an elongatedshape and sized and configured to be inserted into a urethra, avaginal-insertion member 5 possessing an elongated shape and sized andconfigured to be inserted into a vagina; and a supporting member 2 forsupporting the puncture member 3, the urethral-insertion member 4 andthe vaginal-insertion member 5. The supporting member 2 is an example ofa restriction means for restricting the positional relationship betweenthe puncture member 3 and the urethral-insertion member 4 (and also thevaginal-insertion member 5, if desired), as will be discussed in moredetail below. The puncture member 3 includes a puncture needle 31 at adistal end portion of the puncture member for puncturing living bodytissue, an axial portion 33 and an interlock portion 32 connecting thepuncture needle 31 and the axial portion 33.

In this embodiment, the urethral-insertion member 4 is firmly-fixed tothe supporting member 2. This urethral-insertion member 4 is a straighttubular-shaped body composed of a non-elastic rigid material, and has anopening at the proximal end that opens to the proximal surface of thesupporting member 2. It is possible to insert into the inside of theurethral-insertion member 4 various kinds of long-shaped (elongated)medical tools such as, for example, a balloon catheter 11, which isprovided with an expandable and contractible balloon 111 at its distalportion such as shown in FIG. 3. In FIG. 3, a state in which the balloon111 is contracted is indicated by a solid line and a state in which theballoon 111 is expanded is indicated by a two-dot chain line.

The balloon 111 of this balloon catheter 11 functions as a restrictionstructure for restricting the position of the urethral-insertion member4 in the axis direction (longitudinal direction) inside the urethra.More specifically, when using the puncture apparatus 1, the balloon 111is inserted into a bladder of a patient, the positional relation in theaxial direction between the balloon catheter 11 and theurethral-insertion member 4 is fixed, and also, by a mechanism in whichthe balloon 111 is hooked onto the bladder neck in a state of beingexpanded, the position of the urethral-insertion member 4 with respectto the bladder and the urethra is fixed.

A balloon expanding tool such as, for example, a syringe is connected toa port which communicates with a lumen in communication with the balloon111 of the balloon catheter 11. The expansion and contraction of theballoon 111 is carried out by feeding an operating fluid supplied bythat balloon expanding tool into the inside of the balloon 111 throughthe mentioned lumen or by pulling out the operating fluid. As theoperating fluid for the expansion of the balloon, it is possible to use,for example, a liquid such as a physiological saline or the like, a gas,and the like.

Also, it is possible to use the balloon catheter 11 for the urination ofthe patient when using the puncture apparatus 1.

A marker 41 is also provided at the outer circumferential portion of theurethral-insertion member 4. This marker 41 is arranged such that themarker 41 is positioned at the urethral opening when theurethral-insertion member 4 is inserted into the urethra and the distalportion of the urethral-insertion member 4 is positioned just before thebladder.

In this embodiment, the vaginal-insertion member 5 is firmly-fixed tothe supporting member 2. This vaginal-insertion member 5 is a straightbar shape. Also, the distal portion of the vaginal-insertion member 5 isrounded. Thus, it is possible to insert the vaginal-insertion member 5smoothly into the vagina.

Also, the vaginal-insertion member 5 is arranged on the lower side ofthe urethral-insertion member 4 and is separated or spaced from theurethral-insertion member 4 by a predetermined distance such that theaxis of the vaginal-insertion member 5 and the axis of theurethral-insertion member 4 are parallel. Preferably at least a proximalportion of the vaginal-insertion member 5 may be parallel with aproximal portion of the urethral-insertion member 4.

There is no limitation in particular for the materials forming thevaginal-insertion member 5, the urethral-insertion member 4 and thesupporting member 2. It is possible to use, for example, various kindsof resin materials or the like, or various kind of metal materials orthe like.

With regard to the puncture member 3, the axial portion 33 of thepuncture member, also constituting the rotational axis of the puncturemember, is placed (mounted) in a freely rotatable manner on thesupporting member 2.

Also, the axial portion 33 is arranged on the upper side of theurethral-insertion member 4 and is separated or spaced from theurethral-insertion member 4 by a predetermined distance such that theaxis of the axial portion 33 and the axis of the urethral-insertionmember 4 are parallel. Also, when seen from the axial direction of theaxial portion 33, the axial portion 33, the urethral-insertion member 4and the vaginal-insertion member 5 are arranged on a straight line. Theaxis of the axial portion 33 exists in the same plane (plane surface) asthat of the axis of the urethral-insertion member 4. The axis of theaxial portion 33 also exists on the same plane (plane surface) same asthat of the axis of the vaginal insertion member 5. Thus, as seen inFIG. 2, the axis of the axial portion 33, the axis of theurethral-insertion member 4, and the axis of the vaginal insertionmember 5 lie in a common plane (a plane perpendicular to the plane ofthe paper).

This axial portion 33 passes completely through the supporting member 2in the right and left direction in FIG. 1. On the distal side and theproximal side of the axial portion 33, there are formed a flange 331 anda flange 332 respectively through the supporting member 2, and dependingon these flanges 331, 332, the movement toward the axis direction of theaxial portion 33 with respect to the supporting member 2 is blocked.

The distal end of the puncture needle 31 has a sharp needle tip, and thepuncture needle 31 bends in an arc shape centered on the axial portion33. Also, in FIG. 1, the axis of the puncture needle 31 and the axis ofthe axial portion 33 are orthogonal. Thus, when the puncture member 3 ismoved rotationally, the needle tip of the puncture needle 31 moves alongthe arc in a surface perpendicular to the axis of the axial portion 33and more specifically, moves in a surface in which the aforesaid axis isa normal line.

The puncture needle 31 moves along a predetermined orbit. It is possiblefor the needle tip of the puncture needle 31 to move by drawing apreliminarily defined arc-shaped orbit centered on the axial portion 33.The orbit of the puncture needle 31 passes a far-position side comparedwith the urethral-insertion member 4. The orbit of the puncture needle31 passes a portion between the urethral-insertion member 4 andvaginal-insertion member 5.

There is no problem even if the distal end of the puncture needle 31 hasan obtuse needle tip of such a degree in which there is no obstacle toprogress toward the inside of the living body tissue. It is possible toemploy another or different member for the needle tip of the punctureneedle 31.

Also, in this embodiment disclosed by way of example, the needle tip ofthe puncture needle 31 is directed toward the counterclockwise directionin FIG. 2, but it is not limited to this configuration as it is alsopossible for the needle to be directed toward the clockwise direction inFIG. 2.

It is also possible for the puncture needle 31 to be solid and it isalso possible for the needle to have a tubular and hollow shape.

Also, in this embodiment, the puncture needle 31 is arranged on theproximal side relative to the distal portion (distal-most end) of theurethral-insertion member 4 in the axial direction of theurethral-insertion member 4.

It is also possible however for the puncture needle 31 to be arranged atthe same position as the distal portion (distal-most end) of theurethral-insertion member 4 in the axial direction of theurethral-insertion member 4. Additionally, the needle 32 can be arrangedon the distal side of the distal portion (distal-most end) of theurethral-insertion member 4.

Here, the supporting member 2 restricts the positional relation betweenthe puncture member 3 and the urethral-insertion member 4 such that whenthe puncture member 3 moves rotationally (rotates) and punctures theliving body tissue, the needle tip of the puncture needle 31 passes,relative to the urethral-insertion member 4 or an extended line(imaginary continuation) of such member, a far-position side from thecenter 311 of the puncture needle 31 so that is passes to a lower sideof the urethral-insertion member 4 or an extended line of such member.That is, during rotation of the needle 31, the tip of the needle passeson the side (lower side in FIG. 2) of the urethral-insertion member 4that is opposite the rotation center 33 of the needle such that theurethral-insertion member 4 is positioned between the center 33 and thelower portion of the path of movement of the needle tip. The center 311of the puncture needle 31 is the center of the arc in the punctureneedle 31, that is, is the rotary center of the puncture needle 31(puncture member 3).

The positional relationship between the puncture member 3 and theurethral-insertion member 4 is fixed such that the orbit of the needletip of the puncture member 3 does not intersect the urethral-insertionmember 4 or the extended line thereof and such that the orbit of theneedle tip of the puncture needle 31 will pass the lower side of theurethral-insertion member 4 or the extended line (imaginary extension)of such line.

With regard to the positional relation between the orbit of the needletip of the puncture member 3 and the urethral-insertion member 4, otherthan the configuration in which the position is maintain by such amember as the aforementioned supporting member 2, it is possible toemploy a guide member which is connected with the urethral-insertionmember 4 and which is insertable into the urethral-insertion member 4such that the puncture member 3 makes a movement by a certain orbit.Also, it is possible to employ a configuration in which theurethral-insertion member 4 and the puncture member 3 are connecteddirectly and the puncture member 3 is configured to make a movement by acertain orbit, whereby the positional relation is fixed such that theorbit of the needle tip of the puncture needle 31 will pass the lowerside of the urethral-insertion member 4 or the extended line thereof.

Also, it is possible for the urethral-insertion member 4 to be providedwith a marker which is visually recognizable under the noninvasivemonitoring of the inside of the body by X-ray, ultrasound or the like.While confirming the position of the urethral-insertion member 4 by amonitor while emitting the X-ray or the ultrasound, it is possible topass the needle tip through a desired position by setting a condition inwhich the orbit of the needle tip of the puncture needle 31 will surelypass the lower side of the urethra and by executing the puncture.Further, it is possible for the vaginal insertion member 5 to beprovided with a similar marker. It is possible to employ a configurationin which the orbit of the needle tip of the puncture needle 31 isdisplayed on the monitor such that the position of theurethral-insertion member 4 and the position of the orbit can beconfirmed on the monitor. In a case in which the position of theurethral-insertion member 4 and the position of the orbit on the monitorintersect each other, a mechanism can be provided which can move thepuncture member 3 automatically or manually such that the position ofthe orbit does not overlap. When employing such an embodiment, thepositional relation between the orbit of the needle tip of the punctureneedle 31 and the urethral-insertion member 4 can be maintained by aseries of systems including the mechanism mentioned above.

Further, the supporting member 2 restricts the positional relationbetween the puncture member 3 and the vaginal-insertion member 5 suchthat when the puncture member 3 moves rotationally and punctures theliving body tissue, the needle tip of the puncture needle 31 does notinterfere with the vaginal-insertion member 5 and the extended linethereof.

More specifically, the supporting member 2 restricts the positionalrelation between the puncture member 3, the urethral-insertion member 4and the vaginal-insertion member 5 such that when the puncture member 3rotates or moves rotationally and punctures the living body tissue, theneedle tip of the puncture needle 31 passes a position between theurethral-insertion member 4 or the extended line thereof and thevaginal-insertion member 5 or the extended line thereof.

Thus, depending on the puncture needle 31, it is possible to puncturethe living body tissue by avoiding the urethra and the vaginal wall, andit is possible to prevent a phenomenon in which the puncture needle 31will puncture the urethra and will puncture the vaginal wall.

Also, the orbit of the needle tip of the puncture needle 31 isdetermined so that it is possible for the operator himself to prevent aphenomenon of puncturing his finger tip by the puncture needle 31.Safety can thus be obtained.

There is no limitation in particular for the center angle θ1 of the arcof the puncture needle 31. This angle is an angle to be set arbitrarilyin response to various conditions, and this angle is set such that whenpuncturing living body tissue by the puncture needle 31, it becomespossible for the puncture needle 31 to enter into the body from one bodysurface of the patient, to pass the lower side of the urethra and toprotrude to the body outside from the other body surface.

Specifically, it is preferable for the center angle θ1 of the arc of thepuncture needle 31 to be 150° to 270°, more preferably 170° to 250° orless, and still more preferably 190° to 230°.

Thus, when puncturing living body tissue by the puncture needle 31, itis possible for the puncture needle 31 to reliably enter into the bodyfrom one body surface of the patient, to pass the lower side of theurethra and to protrude to the body outside from the other body surface.

Also, at the distal portion of the puncture needle 31, there is formed athrough-hole 312. This through-hole 312 passes through the punctureneedle 31 toward the direction which is perpendicular with respect tothe axis of the puncture needle 31. Also, either one of the strings 91,92 which are fixed to the aforementioned implant 8 is inserted into thisthrough-hole 312 and is detachably held (see FIG. 7B).

Also, at the proximal portion of the axial portion 33, there is provideda grasping unit 34 as an operation unit for operating the puncturemember 3 rotationally. In this embodiment disclosed by way of example,this grasping unit 34 is in the shape of a rectangular solid. Whenmoving the puncture member 3 rotationally, the grasping unit 34 isgrasped by hand and fingers, and is moved rotationally toward apredetermined direction. Needless to say, the shape of the grasping unit34 is not limited by the illustrated and described configuration.

There is no limitation in particular for the material forming thepuncture member 3 and it is possible to use various kinds of rigidmaterials, such as metal materials, such as metal materials and resinmaterials. Examples of metal materials include stainless steel, aluminumor aluminum alloy and titanium or titanium alloy, or the like, andexamples of resin materials include polyimide or polyamide, or the like.Puncture member 3 may include an outer elongate tube and an inner solidshaft.

Set forth next is a description of an operating procedure using thepuncture apparatus 1, that is, a procedure when burying the implant 8inside the living body.

Initially, there will be explained a method of forming a path forburying the implant 8 inside the living body.

First, as shown in FIGS. 4A and 4B, the puncture apparatus 1 is attachedto a patient. More specifically, the urethral-insertion member 4 of thepuncture apparatus 1 is inserted into a urethra 100 of the patient andconcurrently, the vaginal-insertion member 5 is inserted into a vagina200 of the patient. At that time, the insertion is carried out such thatthe marker 41 will be positioned at the urethral orifice or on the frontside of the urethral orifice. Thus, it is possible to arrange the distalportion of the urethral-insertion member 4 on the front side of thebladder.

Next, as shown in FIGS. 5A, 5B, 6A and 6B, the grasping unit 34 isgrasped and the puncture member 3 is rotated counterclockwise in FIG. 5Band FIG. 6B.

Thus, the member 3 percutaneously moves into a tissue of the body. Firstthe needle tip of the puncture needle 31 moves counterclockwise in FIG.5B and FIG. 6B along the arc of the needle; punctures the body surfaceat an interlock region of the patient on the left side in FIG. 5B andFIG. 6B or at a region in the vicinity of such region; enters into thebody; passes an obturator foramen 400 a of a pelvis 300; passes thelower side of the urethra 100, that is, passes between the urethra 100and the vagina 200; passes an obturator foramen 400 b of the pelvis 300;and protrudes back outside the body be exiting the body surface at aninterlock region on the right side in FIG. 5B and FIG. 6B or at a regionin the vicinity of such region. Thus, for the patient, there is formed athrough-hole 500 which starts from the body surface at an interlockregion on the left side in FIG. 5B and FIG. 6B or at a region in thevicinity of such region and which reaches the body surface at aninterlock region on the right side in FIG. 5B and FIG. 6B or at a regionin the vicinity of such region by passing through the obturator foramen400 a, the space between the urethra 100 and the vagina 200 and theobturator foramen 400 b.

The through-hole 500 maintains a non-opened state with respect to theurethra 100 and the vagina 200. It is preferable for the orbit of theneedle tip of the puncture needle 31 to pass a region on the inner side(near the pubic-bone connection) from the center of the obturatorforamen 400 b of the pelvis 300. It is more preferable for the orbit topass a region referred to as a so-called safety zone (or safety-entryzone) within the regions near the pubic-bone connection from the centerof the obturator foramen 400 b. This is because there are few nerves orblood vessels in such regions, for which injuries are desired to beavoided, and because it is possible to carry out the puncture safely.

There will next be explained a procedure of passing an implant throughthe path and indwelling the implant.

As shown in FIGS. 7A and 7B, the end portion of either one of thestrings 91, 92 fixed to the implant 8 is inserted through thethrough-hole 312 of the puncture needle 31, there is inserted the endportion of either one of the strings 91, 92 fixed to the implant 8. Inthe illustrated example, the end portion of string 91 is insertedthrough the through-hole 312 of the puncture needle 31. Thus, the endportion of the string 91 is held at the distal portion of the punctureneedle 31.

Next, as shown in FIG. 8, the grasping unit 34 is grasped and thepuncture member 3 is rotated clockwise in FIG. 8.

Thus, the needle tip of the puncture needle 31 moves clockwise in FIG. 8along an arc; enters the body from the interlock region of the patienton the right side in FIG. 8 or from a body surface in a region in thevicinity of such region; passes the obturator foramen 400 b of thepelvis 300; passes the lower side of the urethra 100, that is, passesbetween the urethra 100 and the vagina 200; passes the obturator foramen400 a of the pelvis 300; and exits to the outside of the body from theinterlock region on the left side in FIG. 8 or from a body surface in aregion in the vicinity of such region. More specifically, the punctureneedle 31 is pulled out or moved to the outside of the body.

Next, as shown in FIG. 9, the end portion of the string 91 is pulled outfrom the through-hole 312 of the puncture needle 31. Also, the punctureapparatus 1 is removed from the patient. More specifically, theurethral-insertion member 4 is pulled out from the inside of the urethra100 and concurrently, the vaginal-insertion member 5 is pulled out fromthe inside of the vagina 200 of the patient.

Next, as shown in FIG. 10, the string 91 is pulled while pulling thestring 92, the implant 8 is inserted into the through-hole 500 which isformed in the patient; and while the end portion of the implant 8 on theright side in FIG. 10 is remained on the outside of the body, the endportion of the implant 8 on the left side in FIG. 10 is pulled out fromthe through-hole 500 to the outside of the body.

Next, as shown in FIG. 11, the strings 91, 92 are pulled respectively bypredetermined forces, the position of the implant 8 with respect to theurethra 100 is adjusted, unnecessary portions of the implant 8 are cutout, and afterward the procedure is completed.

As explained above, according to this puncture apparatus 1, whenindwelling an implant, it is possible to make a correspondence only by aprocedure exhibiting relatively low invasiveness, involving a punctureof the puncture needle 31 or the like, and it is not necessary to carryout a highly invasive incision or the like, so that the burden on thepatient is relatively small and also, the safety of the patient is quitehigh.

Also, because the living body can be punctured by the puncture needle 31by avoiding the urethra and the vaginal wall, it is possible to preventa phenomenon in which the puncture needle 31 will puncture the urethraand will puncture the vaginal wall, thus facilitating a safe result.Also, it is possible for the operator himself to prevent a phenomenon inwhich his finger tip will be punctured by the puncture needle 31 and sosafety can be obtained.

Also, it is possible to prevent a phenomenon in which, such as in aconventional case of incising a vagina, the implant is exposed to theinside of the vagina from a wound caused by the incision and in whichcomplications occur which are caused by an infection from the wound orthe like.

In this embodiment disclosed by way of example, the puncture hole formedfor the patient by the puncture needle 31 is a through-hole, but it isnot limited by this configuration and it is possible for the puncturehole not to employ a passing-through type.

Also, the urethral-insertion member is not limited to a tubular-shapedmember and it is possible, for example, to employ a solid member, and inaddition, it is also possible to employ a member which is hollow and inwhich either one or both of the distal portion and the proximal portionof the hollow member are occluded.

The distal portion of the urethral-insertion member can be provided withan expandable a contractible balloon as a restriction structure forrestricting the position in the axial direction of theurethral-insertion member inside the urethra.

Also, in this embodiment, the puncture needle of the puncture member isa needle, the whole of which is bent in an arc shape. But the needle isnot limited to this shape or configuration, and it is possible, forexample, to employ a needle including a region bent in an arc shape onlyfor a portion of the length of the needle. More specifically, it isenough if the puncture needle includes a region bent in an arc shape atleast for a portion of the extent of the needle.

Also, it is sufficient if the puncture needle of the puncture memberincludes a bent region at least for a portion of its length and it ispossible, for example, to employ a needle, the whole of which is bent inan elliptical arc shape and to employ a needle which includes a regionbent in an elliptical arc shape only for a portion of its length. Morespecifically, it is possible for the puncture needle to include a regionbent in an elliptical arc shape at least for a portion of its extent.

Set forth next is a description of other examples of the puncture memberdisclosed here. The puncture needle 31 of the puncture member 3 a shownin FIG. 19A includes a linear shaped portion 313 forming a linear shapeat the distal portion of the needle. This linear-shaped portion 313protrudes in the direction of a tangent line of the end portion of theneedle from the end portion on the distal side of the arc of thepuncture needle 31.

In case of using this puncture member 3 a, before rotating the puncturemember 3 a, the puncture member 3 a is first pressed against the patientand the linear shaped portion 313 of the puncture needle 31 puncturesthe patient.

The puncture needle 31 of the puncture member 3 b shown in FIG. 19B isbent in an elliptical arc shape centered on the axial portion 33. Thelong axis direction of the ellipse coincides with the up and downdirection in FIG. 19B.

It is possible to use this puncture member 3 b preferably in a case inwhich the urethra of the patient is positioned at a deep place from herbody surface.

The puncture needle 31 of the puncture member 3 c shown in FIG. 19Cincludes a linear shaped portion 314 forming a linear shape on themidway portion of the needle, that is, at the intermediate portion ofthe puncture needle 31.

It is possible to use this puncture member 3 c preferably in a case inwhich the urethra of the patient is positioned at a shallow place fromher body surface.

FIG. 12 illustrates a second embodiment representing another example ofthe puncture apparatus disclosed here. The following description of thisembodiment will be set forth assuming that the left side in FIG. 12 isthe “distal end” and the right side in FIG. 12 is the “proximal end”.

The following description of the second embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe first embodiment described above. Features and aspects of thissecond embodiment of the puncture apparatus that are similar to thosedescribed above in the first embodiment are identified by commonreference numerals, and a detailed description of such aspects andfeatures is not repeated.

As shown in FIG. 12, in the puncture apparatus 1′ of the secondembodiment, the axial portion 33 of the puncture member 3 is supportedmovably by the supporting member 2 in the axial direction of the axialportion 33, that is, in the axial direction of the urethral-insertionmember 4.

Specifically, the puncture member 3 includes a tubular body 35 throughwhich an axial portion 33 is inserted and which rotatably supports thataxial portion 33. Also, the flanges 331, 332 are arranged on the distalside and on the proximal side of the tubular body 35 respectively, andowing to these flanges 331, 332, the movement in the axial direction ofthe axial portion 33 with respect to the tubular body 35 is blocked.That is, the flanges 331, 332 permit axial movement of the tubular body35 relative to the supporting member 2, but limit the amount of suchaxial movement. The tubular body 35 is placed (mounted) on thesupporting member 2 movably in the axial direction of the axial portion33, that is, in the axial direction of the urethral-insertion member 4.

By moving the puncture member 3 in the axial direction of theurethral-insertion member 4, it is possible for the puncture needle 31to be disposed in the axial direction of the urethral-insertion member 4at any position, including on the proximal side of the distal-most tipof the urethral-insertion member 4, at the same position as that of thedistal-most tip of the urethral-insertion member 4, and on the distalside of the distal-most end of the urethral-insertion member 4.

Also, the puncture apparatus 1′ includes a male screw 61. At thepositional region of the supporting member 2 corresponding to that ofthe tubular body 35, there is formed a female screw portion 21 having afemale screw to threadably engage the male screw 61.

When rotating the male screw 61 in a predetermined direction, the distalend of that male screw 61 pressure-contacts the tubular body 35, and themovement of the tubular body 35 with respect to the supporting member 2is blocked. Also, when rotating the male screw 61 in the reversedirection with respect to the abovementioned direction, the distal endof that male screw 61 is separated from the tubular body 35 and themovement of the tubular body 35 with respect to the supporting member 2becomes possible.

The male screw 61 and the female screw portion 21 constitute a lock unitfor changing-over between a state in which the tubular body 35 ismovable with respect to the supporting member 2 and a state in which themovement of the tubular body 35 is blocked.

Also, on the outer circumferential surface of the tubular body 35, thereis provided a scale which indicates a distance from a reference positionof the center 311 of the puncture needle 31 in the axial direction ofthe axial portion 33 (regarding the center 311, see FIG. 2).

Also, the urethral-insertion member 4 is a solid bar-shaped member. Thedistal portion of the urethral-insertion member 4 is rounded. Thus, itis possible to insert the urethral-insertion member 4 smoothly into theinside of the urethra. Needless to say, it is possible for theurethral-insertion member 4 to be formed similarly as that of the firstembodiment.

This second embodiment of the puncture apparatus 1′ is able to obtainsimilar effects as those of the aforementioned first embodiment.

FIG. 13 illustrates a third embodiment representing another example ofthe puncture apparatus disclosed here. The following description of thisembodiment will be set forth assuming that the left side in FIG. 13 isthe “distal end” and the right side in FIG. 13 is the “proximal end”.

The following description of the third embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe first embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the firstembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

As shown in FIG. 13, in the puncture apparatus 1″ of the thirdembodiment, the axis 333 of the axial portion 33 of the puncture member3 is inclined with respect to the axis 42 such that the distance ofseparation between the axis 333 and the axis 42 of theurethral-insertion member 4 increases toward the distal side. Thus, itis possible to bury the implant 8 by being inclined.

The axis 42 of the urethral-insertion member 4 and the axis of thevaginal-insertion member 5 are parallel, and the axis 333 of the axialportion 33 of the puncture member 3 is inclined with respect to the axisof the vaginal-insertion member 5 such that the distance of separationbetween the axis 333 and the axis of the vaginal-insertion member 5increases toward the distal side.

It is preferable for the inclination-angle θ2 of the axis 333 withrespect to the axis 42 to be around 20° to 60°, more preferably around30° to 45°, and still more preferably around 35° to 40°. Thus, it ispossible to carry out the puncture of the puncture needle 31 relativelyeasily, and concurrently it is possible to realize a shorterpuncture-distance.

To explain in more detail, by setting the inclination angle θ2 to bewithin the aforesaid range, it is possible for the puncture needle 31 towidely capture the right-left obturator foramens 400 a, 400 b of thepelvis planarly and it is possible to widely secure the puncture spaceof the puncture needle 31. More specifically, in a state of setting thepatient to be at a predetermined body position (dorsosacral position),it is possible to puncture the puncture needle 31 comparatively towardthe perpendicular direction with respect to the right-left obturatorforamens 400 a, 400 b of the pelvis. Therefore, it is possible to carryout the puncture of the puncture needle 31 rather easily. In addition,by puncturing the puncture needle 31 comparatively toward perpendiculardirection with respect to the obturator foramens 400 a, 400 b, thepuncture needle passes a shallow portion of the tissue, so that it ispossible for the needle tip of the puncture needle 31 to pass betweenthe right-left obturator foramens 400 a, 400 b by a shorter distance. Itis possible for the puncture needle 31 to pass comparatively near thepubic-bone connection of the obturator foramens 400 a, 400 b andpreferably through a safety zone, so that it is possible to puncture theregion safely in which there are fewer nerves or blood vessels foravoiding injuries. Therefore, there can be obtained a state of lowerinvasion and it is possible to burden the patient to a lesser degree. Inthis manner, by setting the inclination angle θ2 in the aforesaid range,it is possible to carry out the puncture of the puncture needle 31 tothe patient more properly. On the other hand, in a case in which theinclination angle θ2 is less than the aforesaid lower limit or exceedsthe aforesaid upper limit, depending on the individual differences ofthe patients, the postures during the procedures and the like, there canoccur a situation in which it is not possible for the puncture needle 31to widely capture the obturator foramens 400 a, 400 b planarly, asituation in which it is not possible to shorten the puncture pathadequately and so on. Therefore, it is preferable for the punctureneedle 31 to be punctured toward the perpendicular direction withrespect to the right-left obturator foramens 400 a, 400 b of the pelvis.

Also, by carrying out the puncture in the abovementioned angle, itbecomes easier to aim the tissue between the mid-urethra indicating themiddle positional portion in the length direction of the urethra and thevagina. The position between the mid-urethra and the vagina is aposition suitable as the region at which the implant 8 is to be buriedand the treatment of the urinary incontinence is to be carried out. Morepreferably, if the puncture is carried out in a state of manipulatingthe position so as to arrange a position of the urethra or the vagina,or both, it is rather easy to puncture a position between themid-urethra and the vagina. It is preferable to move the urethra or thevagina, or both to the predetermined position before passing thepuncture member at the position between the mid-urethra and vagina.

Moving the urethra or the vagina, or both may be for examplepressing/pulling toward the inside/outside of the body. The means forpushing-in either one of the urethra and the vagina toward the inside ofthe body moves, for example, the urethral-insertion member 4 and/or thevaginal insertion member 5 toward the inside of the body before thepuncture as far as a predetermined position along each of the axes aftersetting a state in which the insertion member is inserted to a properposition. The urethral-insertion member 4 and/or the vaginal insertionmember 5 may have a suction mechanism for sucking the inner wall of theurethra or the vagina. The suction mechanism may hold the position ofthe urethral-insertion member 4 and/or the vaginal insertion member 5.When the urethral-insertion member 4 and/or the vaginal insertion member5 may be moved toward the inside or the outside of the body, the urethraand/or the vagina may be moved along the member 4 and/or the member 5.At that time, by attaching a visible marker or such a marker which canbe imaged under a noninvasive monitoring of the inside of the bodydepending on such as X-ray, ultrasound or the like onto theurethral-insertion member 4 and/or onto the vaginal insertion member 5,it is possible to recognize the movement distance of the member.

By puncturing the puncture needle 31 perpendicularly with respect to theright-left obturator foramens 400 a, 400 b of the pelvis in a state inwhich the position is prolapsed so as to press at least one of theurethra and the vagina toward the inside of the body, it is possible toform the path at a position suitable for the indwelling of the implant8.

It is preferable that the orbit of the puncture needle 31 is set so asto pass the safety zone of the right-left obturator foramens 400 a, 400b of the pelvis, that at least one of the urethra and the vagina isprolapsed toward the inside of the body such that the orbit ispositioned between the mid-urethra and the vagina, and that the pathwill be formed by executing the puncture along the orbit of the punctureneedle 31.

The urethral-insertion member 4 is a solid bar-shaped member. Also, thedistal portion of the urethral-insertion member 4 is rounded. Thus, itis possible to insert the urethral-insertion member 4 smoothly into theinside of the urethra. It is possible for the urethral-insertion member4 to be formed similarly as that of the first embodiment.

The puncture apparatus 1″ according to this third embodiment is able toobtain similar effects as those of the first embodiment described above.

It is possible for the axis 42 of the urethral-insertion member 4 andthe axis of the vaginal-insertion member 5 not to be parallel to eachother.

FIG. 20 illustrates a fourth embodiment representing another example ofthe puncture apparatus disclosed here. The following description of thisembodiment will be set forth assuming that the left side in FIG. 20 isthe “distal end” and the right side in FIG. 20 is the “proximal end”.

The following description of the fourth embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe third embodiment described above. Features and aspects of thisfourth embodiment of the puncture apparatus that are similar to thosedescribed above are identified by common reference numerals, and adetailed description of such aspects and features is not repeated.

As shown in FIG. 20, in the puncture apparatus 1′″ of the fourthembodiment, the axis 333 of the axial portion 33 of the puncture member3 is inclined with respect to the axis 42 such that the distance ofseparation between the axis 333 and the axis 42 of theurethral-insertion member 4 decreases toward the distal side. Thus, itis possible to bury the implant 8 by being inclined.

The axis 42 of the urethral-insertion member 4 and the axis of thevaginal-insertion member 5 are in parallel and the axis 333 of the axialportion 33 of the puncture member 3 is inclined with respect to the axisof the vaginal-insertion member 5 such that the separated distancebetween the axis 333 and the axis of the vaginal-insertion member 5decreases toward the distal side.

The preferable range of the inclination-angle 83 of the axis 333 withrespect to the axis 42 is similar to the preferable range of theinclination-angle θ2 of the third exemplified embodiment.

This puncture apparatus 1′″ is able to obtain similar effects as thosedescribed above regarding the third embodiment.

Note that the axis 42 of the urethral-insertion member 4 and the axisthe vaginal-insertion member 5 are allowed to be not in parallel.

FIG. 21 illustrates a fifth embodiment representing another example ofthe puncture apparatus disclosed here. The following description of thisembodiment will be set forth assuming that the left side in FIG. 21 isthe “distal end” and the right side in FIG. 21 is the “proximal end”.

The following description of the fifth embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe third embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the thirdembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

As shown in FIG. 21, in the puncture apparatus 10 of the fifthembodiment, the axis 42 of the urethral-insertion member 4 is inclinedwith respect to the axis 333 such that the distance of separationbetween the axis 42 and the axis 333 of the axial portion 33 of thepuncture member 3 decreases toward the distal side. In other words, theaxis 333 of the axial portion 33 of the puncture member 3 is inclinedwith respect to the axis 42 such that the distance of separation betweenthe axis 333 and the axis 42 of the urethral-insertion member 4decreases toward the distal side. Thus, it is possible to bury theimplant 8 by being inclined.

The axis 333 of the axial portion 33 of the puncture member 3 and theaxis of the vaginal-insertion member 5 are parallel, and the axis 42 ofthe urethral-insertion member 4 is inclined with respect to the axis ofthe vaginal-insertion member 5 such that the distance of separationbetween the axis line 333 and the axis line of the vaginal-insertionmember 5 increases toward the distal side.

The preferable range of the inclination-angle 84 of the axis line 42with respect to the axis 333 (inclination-angle of the axis 333 withrespect to the axis 42) is similar to the preferable range of theinclination-angle θ2 discussed above regarding the third embodiment.

This puncture apparatus 10 is able to obtain similar effects as thosedescribed above regarding the third embodiment.

It is possible for the axis 42 of the urethral-insertion member 4 to beinclined with respect to the axis 333 such that the distance ofseparation between the axis 42 and the axis 333 of the axial portion 33of the puncture member 3 increases toward the distal side. In otherwords, it is possible for the axis 333 of the axial portion 33 of thepuncture member 3 to be inclined with respect to the axis 42 such thatthe distance of separation of the axis 333 and the axis 42 of theurethral-insertion member 4 increases toward the distal side.

FIGS. 14-18 illustrate a sixth embodiment representing another exampleof the puncture apparatus disclosed here. FIG. 16A is a frontelevational view, that is, a view seen from the upside in FIG. 14. Also,either one of FIG. 16B and FIG. 16C is a view seen from a direction ofan arrow 16B, 16C in the urethral-insertion member shown in FIG. 16A, inwhich for the attachment piece of the urethral-insertion member shown inFIG. 16C, there is shown a state thereof in which the attachment pieceis rotated by 90° with respect to the attachment piece of theurethral-insertion member shown in FIG. 16B. The following explanationis set forth assuming that the left side in FIG. 14, FIG. 15, FIG. 16Ais the “distal end” and the right side is the “proximal end”.

The following description of the sixth embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe first embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the firstembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

In the puncture apparatus 10′ of the sixth embodiment shown in FIG. 14,the puncture member 3, the urethral-insertion member 4 and thevaginal-insertion member 5 are freely detachable with respect tosupporting member 2 respectively. More specifically, the axial portion33 of the puncture member 3, the urethral-insertion member and thevaginal-insertion member 5 are supported by the supporting member 2 in afreely detachable manner respectively.

Also, the urethral-insertion member 4 is a solid bar-shaped member, andthe distal portion of the urethral-insertion member 4 is rounded. Thus,it is possible to insert the urethral-insertion member 4 smoothly intothe inside of the urethra. Needless to say, it is possible for theurethral-insertion member 4 to be formed similar to that of the firstembodiment described above.

As shown in FIG. 14, FIG. 15, FIG. 17 and FIG. 18, the supporting member2 includes a groove 221 to which the puncture member 3 is attached or inwhich the puncture member 3 is positioned; a through-hole 222 providedin the inside of the groove 221; a groove 231 to which theurethral-insertion member 4 is attached or in which theurethral-insertion member 4 is positioned; a through-hole 232 providedin the inside of the groove 231; a groove 241 to which thevaginal-insertion member 5 is attached or in which the vaginal-insertionmember 5 is positioned; and a through-hole 242 provided in the inside ofthe groove 241. The grooves 221, 231, 241 are formed respectively on thefront side of the supporting member 2 in the FIG. 15 illustration andextend from the distal end to the proximal end of the supporting member2.

The construction or configuration of the detachable mechanisms of thepuncture member 3, the urethral-insertion member 4 and thevaginal-insertion member 5 with respect to the supporting member 2 issimilar to one another, so that hereinafter, with regard to eachdetachable arrangement, the detachable mechanism of theurethral-insertion member 4 will be explained representatively.

As shown in FIG. 14 and FIGS. 16, in a state of being attached to thesupporting member 2 (hereinafter, also referred to as “attachmentstate”), the urethral-insertion member 4 is formed with a flange 43 anda flange 44 on the distal side and on the proximal side respectivelythrough that supporting member 2, and the axial movement of theurethral-insertion member 4 with respect to the supporting member 2 isblocked by these flanges 43, 44. The flange 44 is arranged at theproximal portion of the urethral-insertion member 4.

Also, a region 45 between the flange 43 and the flange 44 of theurethral-insertion member 4 is thicker than the region on the distalside from the flange 43 of the urethral-insertion member 4. Also, thecross-sectional shape of the region 45 between the flange 43 and theflange 44 of the urethral-insertion member 4 is square shape accordingto the constitution shown in the drawing.

At the region 45 between the flange 43 and the flange 44 of theurethral-insertion member 4, there is formed a protruding portion 46, inthe attachment state, which protrudes toward the rear side from thefront side of the drawing of FIG. 14, that is, which protrudes towardthe upper side in FIG. 16A. At the protruding portion 46, there islocated an attachment piece 48 through a freely rotatable axis member47. This attachment piece 48 has a flattened shape. The attachment piece48 protrudes toward the upper side in FIG. 16A.

When attaching the urethral-insertion member 4 to the supporting member2, the attachment piece 48 of the urethral-insertion member 4 is set ina state shown in FIG. 16C and the attachment piece 48 is inserted fromthe groove 231 of the supporting member 2 and is passed through thethrough-hole 232. Then, at that time, the region 45 between the flange43 and the flange 44 of the urethral-insertion member 4 is inserted intothe groove 231 of the supporting member 2 and concurrently, theprotruding portion 46 is inserted into the through-hole 232.

Next, as shown in FIG. 18, the attachment piece 48 of theurethral-insertion member 4 is set in a state shown in FIG. 16B by beingrotated by 90°. Thus, while the region 45 between the flange 43 and theflange 44 of the urethral-insertion member 4 is attached onto or setinto the bottom surface of the groove 231, the attachment piece 48 isattached or set onto the surface on the right side of theurethral-insertion member 4 in FIG. 18 and so the attachment anddetachment of the urethral-insertion member 4 with respect to thesupporting member 2 is blocked.

Also, when removing the urethral-insertion member 4 from the supportingmember, the attachment piece 48 of the urethral-insertion member 4 isset in a state shown in FIG. 16C and the urethral-insertion member 4 ismade to move toward the left side in FIG. 18. Thus, it is possible toremove the urethral-insertion member 4 from the supporting member 2.

This puncture apparatus 10′ is able to obtain similar effects as thoseof the first embodiment described above. It is possible to apply thissixth embodiment to the second to fifth embodiments described above toprovide the freely detachable arrangement of the puncture member 3, theurethral-insertion member 4 and/or the vaginal-insertion member 5 withrespect to the supporting member 2.

In this embodiment, the puncture member 3, the urethral-insertion member4 and the vaginal-insertion member 5 are freely detachable with respectto the supporting member 2. But the apparatus is not limited to thisconfiguration and it is possible, for example, for only one or only twoof the puncture member 3, urethral-insertion member 4 and thevaginal-insertion member 5 to be freely detachable with respect to thesupporting member 2. In this case, it is preferable for at least thepuncture member 3 to be freely detachable with respect to the supportingmember 2.

FIGS. 22A-22C illustrates a seventh embodiment representing anotherexample of the puncture apparatus disclosed here. The followingdescription of this embodiment will be set forth assuming that the leftside in FIGS. 22A-22C is the “distal end” and the right side in FIGS.22A-22C is the “proximal end”.

The following description of the seventh embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe first embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the firstembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

As shown in FIG. 22A, in the puncture apparatus 10′ of the seventhembodiment, the urethral-insertion member 4 is configured so that amidway portion of the urethral-insertion member 4 is bent and includes aprotruding portion 49 which protrudes toward the direction away from thevaginal-insertion member 5.

It is possible by this protruding portion 49 to widen the distancebetween the urethra 100 and the vagina 200 and thus, it is possible toreliably prevent a phenomenon in which the puncture needle 31 willpuncture the urethra 100 or the vaginal wall of the vagina 200. Similareffects are obtained by the puncture apparatuses 10′a, 10′b describedbelow.

In the puncture apparatus 10′a shown in FIG. 22B, the length of theurethral-insertion member 4 becomes short with respect to that of thepuncture apparatus 10′ shown in FIG. 22A and there is included aprotruding portion 49 a at the distal portion of the urethral-insertionmember 4. The protruding portion 49 a is a portion which is formed bybending the urethral-insertion member 4 and which protrudes toward thedirection apart from the vaginal-insertion member 5, in which it isconstituted to be shorter than the protruding portion 49 of the punctureapparatus 1.

In this puncture apparatus 10′a, it is possible to prevent an excessiveinsertion of the urethral-insertion member 4 into the urethra 100.

In the puncture apparatus 10′b shown in FIG. 22C, the urethral-insertionmember 4 includes a linear shaped portion 40 forming a linear shapewhich is positioned at the regional portion from the midway to thedistal end thereof and which is on the side apart from thevaginal-insertion member 5 compared with the proximal portion. Note thatthere is no limitation in particular for the length of the linear shapedportion 40 and the length is set arbitrarily in response to variousconditions.

These puncture apparatuses 10′, 10′a, 10′b are able to obtain similareffects as those described above regarding the first embodiment. And itis possible to apply this seventh embodiment to the other respectiveembodiments described above.

FIGS. 23 and 24 illustrate an eighth embodiment representing anotherexample of the puncture apparatus disclosed here, with FIG. representinga side view of the apparatus and FIG. 24 showing a puncture member and asecond supporting portion of the puncture apparatus shown in FIG. 23 asseen from the front. The following description of this embodiment willbe set forth assuming that the left side in FIG. 23 is the “distal end”and the right side in FIG. 23 is the “proximal end”.

The following description of the eighth embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe first embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the firstembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

As shown in FIG. 23 and FIG. 24, in the puncture apparatus 10″ of theeighth embodiment, a supporting member (restriction means) 7 includes afirst supporting portion 71 for supporting the urethral-insertion member4 and the vaginal-insertion member 5; and a second supporting portion 72on the distal side of the first supporting portion 71 and which freelyrotatably supports the puncture member 3.

The puncture member 3 includes a puncture needle 31 and a grasping unit36 provided at the proximal portion of the puncture needle 31. Thegrasping unit 36 protrudes toward the distal side from the proximalportion of the puncture needle 31, that is, toward the left side in FIG.23.

In the second supporting portion 72, there is formed a groove(arc-shaped groove) 73 having a shape corresponding to the punctureneedle 31, and the puncture needle 31 is inserted (housed) inside thegroove 73 in a freely rotatable or freely movable manner. Morespecifically, the puncture needle 31 is configured and housed to slidealong the inner surface of the groove 73, and the puncture needle 31moves rotationally (along an arc), with the center 311 serving as therotary center by sliding along the inner surface of the groove 73. Thesecond supporting portion 72 thus serves as a guide member for guidingthe puncture needle 31 along the groove 73. When moving the punctureneedle 31, that is, the puncture member 3 rotationally, the graspingunit 36 is grasped and the rotational operation of the puncture memberis carried out. Regarding the center 311, it is possible to apply thefeatures of axial portion 33 in the other embodiments.

The inside of the groove 73 is larger than the opening of the entranceto the groove. It is thus possible to prevent the puncture needle 31from dropping-out from the inside of the groove 73 (e.g., by configuringthe portion of the needle positioned in the groove to be slightly largerthan the size of the opening of the entrance of the groove).

This puncture apparatus 10″ obtains similar effects as those describedabove regarding the first embodiment. It is possible to apply thiseighth embodiment to the respective other embodiments described above.

The guide member is not limited to the specific member used in thisembodiment. It is possible, for example, to employ members describedbelow and referred to as constitution 1, constitution 2 and constitution3.

In constitution 1, a convex portion (guide portion) is provided on thepuncture needle, the puncture needle is not housed in the groove of aguide member, the convex portion is housed in the guide member, and thisconvex portion is guided along the groove.

In constitution 2, the guide member includes, for example, a rail (rib)forming an arc shape, and there is provided, on the puncture needle, aguide portion which is engaged with the rail and which is movable alongthis rail. The guide portion is guided along the rail.

In constitution 1, the guide member includes a plurality of pin-pairsconstituted by pin-pairs each of which is arranged by being separated asmuch as a predetermined distance, for example, a distance which is alittle bit longer than the outer diameter of the puncture needle and thepuncture needle is configured to move between each of the pin-pairs. Therespective pin pairs are arranged, for example, in an arc shape and thepuncture needle is guided by these respective pin-pairs.

FIG. 25 illustrates a puncture member and a second supporting portion ofa supporting member in a ninth embodiment of the puncture apparatusdisclosed here. In the description below, the upper side in FIG. 25 is“up” and the lower side is “down”.

The following description of the ninth embodiment will focus primarilyon aspects or features of the puncture apparatus different from those ofthe eighth embodiment described above. Features and aspects of thisembodiment that are similar to those described above in the eighthembodiment are identified by common reference numerals, and a detaileddescription of such aspects and features is not repeated.

As shown in FIG. 25, in the puncture apparatus 10′″ in the ninthembodiment, a second supporting portion 74 of the supporting member 7forms an arc shape. More specifically, an upper surface 75 of the secondsupporting portion 74 forms a shape corresponding to the puncture needle31.

Also, the puncture needle 31 is placed or positioned on the uppersurface 75 of the second supporting portion 74. The puncture needle 31is slidable along the upper surface 75 of the second supporting portion74, and the puncture needle 31 moves rotationally (along an arc) bymaking the center 311 thereof as the rotary center by sliding along theupper surface 75. The second supporting portion 72 thus constitutes theguide member.

This puncture apparatus 10′″ is able to obtain similar effects as thosedescribed above regarding the eighth embodiment. And it is possible toapply this ninth embodiment to the respective other embodimentsdescribed above.

As described above, the puncture apparatus disclosed here is explainedbased on the embodiments shown in the drawings, but the presentinvention is not limited by these embodiments, and it is possible toreplace the constitution of each portion by a different or arbitraryconstitution having a similar function. It is also possible to add otherarbitrary constituent elements.

Also, it is possible to employ an arrangement in which two or moreconstructions or constitutions within the respective embodiments arecombined. In particular, as shown in FIG. 26, by combining the firstembodiment (see FIG. 1 and FIG. 2) and the eighth embodiment (see FIG.23 and FIG. 24) and by providing the second supporting portion 72 of theeighth embodiment, which supports the puncture member 3 in a freelyrotatable manner, in the puncture apparatus 1 of the first embodiment,it is possible to restrict the orbit exactly when puncturing the livingbody tissue by the puncture member 3 and thus, a more accurate puncturebecomes possible. The interlock portion 37 of the puncture member 3 ofthe puncture apparatus 1, which is shown in this FIG. 26, forms anL-shape as shown in FIG. 27. The axial portion 33 of the puncture member3 is located or mounted on the first supporting portion 71 in a freelyrotatable manner.

Here, depending on the patient, the region, between the position atwhich the puncture needle 31 is inserted into (enters) the body from thebody surface and the position at which the needle protrudes back outsidethe body from the body surface, rises and the center of the arc of thepuncture needle 31 is positioned at the patient side compared with thebody surface of the patient, so that there may be a situation in whichthe puncture apparatus 1 cannot be correctly placed at a predeterminedposition. Such a rising can be seen many times for heavy patients. Onthe other hand, for a skinny patient or the like, caused by the factthat the interlocking region or the vicinity of such region isdepressed, it becomes a state in which there occurs a phenomenon ofrising relatively and there occurs a situation in which the centerportion of the patient interferes with the puncture needle 31, so that asituation arises in which that state prevents the puncture operation.Even in such a case, by setting the interlock portion 37 to be in anL-shape, it is possible to help prevent the interlock portion 37 and theaxis portion 33 from interfering with the rising region of the patientand it is possible to carry out the puncture operation by the punctureneedle 31 rather easily and also reliably. The interlock portion 37 iscomposed of a distal portion 371 and a proximal portion 373.

The distal portion 371 extends from the end portion at the opposite sideof the needle tip of the puncture needle 31 toward the perpendiculardirection with respect to the plane including the arc of the puncturemember 3 (with respect to the plane on which the puncture member 3 movesrotationally) (with respect to the orbital plane of the arc). Theproximal portion 373 extends from the proximal portion of the distalportion 371 in the perpendicular direction toward the axial portion 33.More specifically, the proximal portion 373 extends from the proximalportion of the distal portion 371 in a direction perpendicular to theaxial portion 33. The axial portion 33 extends perpendicularly from thecenter of the arc of the puncture needle 31 with respect to the planeincluding the arc of the puncture member 3.

It is also possible for the puncture apparatus 10′″ shown in FIG. 26 touse one of the urethral-insertion member and the vaginal insertionmember if it is possible to carry out the puncture by avoiding theurethra 100 and the vagina 200 carefully by specifying the positions ofthe urethra 100 and the vagina 200, for example, by monitoring withX-ray, ultrasound or the like. In this case, it is possible for thepuncture apparatus 10′″ shown in FIG. 26 to be formed to haveconstituent elements of a puncture needle 31 which is placed freelyrotatably, which includes a bent region and which punctures living bodytissue; an axial portion 33 which extends from the end portion at theopposite side of the needle tip of the puncture needle 31 through theL-shaped interlock portion 37; and a supporting portion 71 by which theaxial portion 33 is placed freely rotatably.

In the configuration shown in FIG. 27, the interlock portion 37 forms anL-shape, but the shape of the interlock portion 37 is not so limited,and it is possible to employ a configuration which is formed, forexample, by a linear shape, a curved shape, a shape made by combining alinear shape and a curved shape, or the like in which the portion isconnected to the axial portion 33 so as not to interfere with the regionof the rising portion of the aforesaid patient.

Also, in the present invention, it is possible, for example, to employ aconfiguration in which the vaginal-insertion member is omitted and therestriction means is provided so as to restrict only the positionalrelation between the puncture needle (puncture member) and theurethral-insertion member.

In the embodiments of the puncture apparatus described above, the orbitor path of movement of the puncture member is specified according to thepositional relation with respect to the urethral-insertion member. Butit is also possible to specify the orbit or path of movement accordingto the positional relation with respect to the vaginal insertion member.For example, it is possible to employ a configuration in which the orbitor path of movement of the puncture member passes a position which is onthe position side near from the center point of the orbit and which isspaced from the vaginal insertion member by a predetermined distance.Thus, for example, with respect to a patient whose distance between themid-urethra and the vagina was measured beforehand, it is possible forthe orbit or movement path of the puncture member to pass a positionwhich is on the position side near from the center point of the orbitand which is spaced from the vaginal insertion member by a distanceshorter than the distance between the mid-urethra and the vagina.

The description above describes various embodiments in which thepuncture apparatus is used in an apparatus that buries or positions aburiable implant for treatment of the woman's urinary incontinence intothe inside of the living body. But the use of the puncture apparatus isnot limited in this regard.

For example, the target to be applied with the puncture apparatusdiscloses here includes an excretory disorder along with the weakeningof the pelvic floor muscle group (urinary urgency, frequent urination,urinary incontinence, fecal incontinence, urinary retention, dysuria orthe like), and a pelvic floor disorder including pelvic organ prolapse,vesicovaginal fistula, urethrovaginal fistula, pelvic pain or the like.In the pelvic organ prolapse, there are include disorders of cystocele,enterocele, rectocele, hysterocele and the like. Alternatively, thereare included disorders of anterior vaginal prolapse, posterior vaginalprolapse, vaginal vault prolapse, vaginal apical prolapse and the likein which the naming method thereof is based on the manipulatingvaginal-wall regions.

Also, in the overactive tissues, there are included bladder, vagina,uterus, bowel and the like. In the lessactive tissues, there areincluded bones, muscles, fascias, ligaments and the like. Inparticularly, in the pelvic floor disorders, there are included anobturator fascia, a coccygeus fascia, a cardinal ligament, a uterosacralligament, a sacrotuberous ligament and the like.

For the procedure for interlocking an overactive tissue in the pelvicfloor disorder with the lessactive tissue, there are included aretropubic sling surgery, a transobturator sling surgery (TransobturatorSling surgery, Transobturator Tape: TOT), a tension-free vaginal mesh(Tension-free Vaginal Mesh: TVM) surgery, a uterosacral ligamentsuspension (Uterosacral Ligament Suspension: USLS) surgery, asacrospinous ligament fixation (Sacrospinous Ligament Fixation: SSLF)surgery, an iliococcygeus fascia fixation surgery, a coccygeus fasciafixation surgery, and the like.

It is possible for the puncture apparatus disclosed here to be appliedto the pelvic floor disorder as follows. It is possible for the punctureapparatus used for the pelvic floor disorder to be applied with therespective constructions of the puncture apparatuses of theabove-described embodiments for treating urinary incontinence. As oneembodiment, there are provided with a puncture member which is freelyrotatably mounted, which includes a bent region and which includes apuncture needle for puncturing living body tissue; an insertion memberhaving a longitudinal shape, which is to be inserted into the inside ofthe body; and a restriction structure for restricting the positionalrelation between the puncture member and the insertion member such thatthe needle tip of the puncture needle will pass at a far-position sidefrom the rotation center of the puncture needle compared with theinsertion member when the puncture member rotates and punctures theliving body tissue.

For example, in the case of a rectocele, within the pelvic organprolapses included in the pelvic floor disorders, in which the deviationoccurs by the fact that the rectum pushes the vaginal wall, theoveractive tissues are the rectum and the vagina and the lessactivetissue becomes the interlock region, or a muscle, a tendon or a ligamentin the vicinity thereof.

As an example, one embodiment of a procedure for forming a path forburying an implant for treating the rectocele is as follows. First, apuncture apparatus is prepared and provided with a puncture member whichis freely rotatably positioned, and which includes a bent region andwhich includes a puncture needle for puncturing living body tissue; aninsertion member having a longitudinal (elongated) shape, which is to beinserted into the inside of the living body; and a restriction structurefor restricting the positional relation between the puncture member andthe insertion member such that the needle tip of the puncture needlewill pass a far-position side (be spaced from) from the rotation centerof the puncture needle compared with the insertion member when thepuncture member rotates and punctures the living body tissue. Next, theinsertion member is inserted into a rectum of a patient. Further, thepuncture needle of the puncture member is operated to puncture a bodysurface at one buttock region of the patient or at the region in thevicinity thereof, made to enter into the body, made to pass afar-position side of the rectum, made to protrude to the outside of thebody from the body surface of another buttock region or from the regionin the vicinity of such region, whereby there is formed a through-holereaching the far-position side of the rectum and the another buttockregion or the region in the vicinity of such region from the otherbuttock region or the region in the vicinity of such region. Afterforming the through-hole, a mesh-shaped implant is indwelled by anidentical or similar method as that of the urinary incontinencedescribed above.

For another embodiment of the procedure disclosed by way of example,there is a method in which there is prepared a puncture member which isfreely rotatable, which includes a bent region and which includes apuncture needle for puncturing living body tissue; and when the puncturemember is moved rotationally and the puncture needle of the puncturemember punctures the living body tissue, the puncture needle is made topuncture a body surface at a buttock region of the patient or at theregion in the vicinity thereof and is made to enter into the body; andthe puncture member is made to pass a far-position side from therotation center of the puncture needle compared with a rectum which isthe target region, whereby the path is formed.

An another embodiment of the procedure, there is prepared a puncturetool provided with an insertion member having a longitudinal (elongated)shape, which is to be inserted into the inside of a rectum, and apuncture member which can puncture the living body tissue and which hassuch an orbit or movement path passing a far-position side compared withthe insertion member; the insertion member is inserted into the rectumof a patient; the puncture member is made to puncture into the bodysurface at a buttock region of the patient or at the region in thevicinity of such region; and the puncture member is made to pass afar-position side compared with the insertion member, whereby the pathis formed. The insertion member is not limited to a member which isinserted into a tubular lumen having an opening on the surface of theliving body, such as a vagina, a urethra, a rectum and the like, andthere can be included also a configuration in which the insertion memberpunctures the tissue from the surface of the living body. In case ofpuncturing the tissue from the surface of the living body, it ispreferable for a tissue insertion member to be provided with a marker bywhich the position of the tissue insertion member can be confirmed oridentified. By providing a marker, there can be confirmed the positionat which the insertion member punctures the tissue. For the marker, itis possible to attach a visually-recognizable marker by which theinsertion depth is visually recognizable. Also, for the marker, it ispreferable to use a marker which is visually recognizable under anoninvasive monitoring inside the body.

The target to be applied is not limited by the pelvic floor disorder.For example, the apparatus and method are also applicable to a disorderin which position deviation of an organ occurs in the inside of theliving body such as a case of an interlock hernia, an abdominal wallhernia or the like.

A puncture apparatus disclosed here generally includes a freelyrotatable puncture member which includes a bent region and whichincludes a puncture needle for puncturing living body tissue, aurethral-insertion member having an elongated shape which is toinsertable into the inside of a urethra, and restriction means forrestricting the positional relation between the puncture member and theurethral-insertion member such that the needle tip of the punctureneedle will pass a far-position side from the rotation center of thepuncture needle compared with the urethral-insertion member when thepuncture member rotates and punctures the living body tissue.

When burying an implant for example, burden onto a patient is relativelysmall, safety of the patient is quite good and also the safety of theoperator is rather high.

When using the puncture apparatus for treating a woman's urinaryincontinence, for example, the urethral-insertion member of aforesaidpuncture apparatus is inserted into her urethra, the puncture needle ismoved rotationally, and her living body is punctured by the punctureneedle. At that time, the needle tip of the puncture needle passes afar-position side from the center of the puncture needle compared withthe urethral-insertion member, so that it is possible to puncture theliving body by avoiding the urethra and it is possible to prevent aphenomenon that the puncture needle is to puncture the urethra. Also, itis possible to prevent a phenomenon that the finger tip of the operatoris punctured by the puncture needle.

Also, when burying an implant for treatment of the urinary incontinence,incision of a vagina wall is not necessary and it is possible to burythat implant by a relatively low invasive procedure. Also, it ispossible to prevent a phenomenon in which, such as in a case of incisinga vagina, the implant will be exposed to the inside of the vagina from awound caused by the incision and in which there occur complicationswhich are to be caused by an infection from the wound or the like, andit is very safe and it is possible to bury the implant reliably.

Also, similar benefits can be realized for disorders in which a positiondeviation of an organ occurs in the inside of the living body such as acase of a pelvic floor disorder or the like.

The puncture apparatus and method here thus exhibit industrialusability.

Having described, by way of example, embodiments of the punctureapparatus and method, it is to be understood that the invention here isnot limited to those precise embodiments and that various changes andmodifications could be effected therein by one skilled in the artwithout departing from the spirit or scope of the invention as definedin the claims.

What is claimed is:
 1. A puncture apparatus comprising: a freelyrotatable puncture member possessing a distal end portion and a proximalend portion, the puncture member including a bent region at which thepuncture member is bent, the distal end portion of the puncture memberincluding a puncture needle for puncturing living body tissue as thepuncture member is rotated about a rotation center to rotate a needletip of the puncture needle toward the living body tissue to puncture theliving body tissue; an elongated urethral-insertion member configured tobe inserted into a urethra so that a near-side of the urethral-insertionmember is the side of the urethral-insertion member located closer tothe rotation center, and the far-side of the urethral-insertion memberis the side of the urethral-insertion member located farther from therotation center; and restriction means for restricting a positionalrelationship between the puncture member and the urethral-insertionmember so that the needle tip of the puncture needle which is rotatingabout the rotation center after first puncturing the living body tissuepasses on the far-side of the urethral-insertion member.
 2. The punctureapparatus according to claim 1, further comprising an elongatedvaginal-insertion member sized and configured to be inserted into avagina, the restriction means also restricting the positionalrelationship between the puncture member and the vaginal-insertionmember such that the needle tip of the puncture needle will notintersect the vaginal-insertion member when the puncture member isrotating about the rotation center after first puncturing the livingbody tissue.
 3. The puncture apparatus according to claim 1, wherein thepuncture member includes an axial portion possessing a central axiswhich is also a rotational axis for rotational movement of the puncturemember, and the restriction means supports the axial portion in a freelyrotatable manner, the restriction means also including a supportingmember supporting the urethral-insertion member.
 4. The punctureapparatus according to claim 3, wherein the puncture member is freelydetachably mounted on the supporting member.
 5. The puncture apparatusaccording to claim 3, wherein the axial portion is supported by thesupporting member movably in the axial direction of theurethral-insertion member.
 6. The puncture apparatus according to claim1, further comprising an elongated vaginal-insertion member sized andconfigured to be inserted into a vagina, the puncture member includingan axial portion possessing a central axis which is also a rotationalaxis for rotational movement of the puncture member, wherein therestriction means restricts the positional relationship between thepuncture member and the vaginal-insertion member such that the needletip of the puncture needle will not intersect the vaginal-insertionmember when the puncture member is rotating about the rotation centerafter first puncturing the living body tissue, and the restriction meanssupporting the axial portion in a freely rotatable manner andconcurrently, the restriction means also including a supporting membersupporting the urethral-insertion member and the vaginal-insertionmember respectively.
 7. The puncture apparatus according to claim 1,wherein the puncture member includes an axial portion connected to thepuncture needle, the axial portion and the urethral-insertion membereach possessing a respective axis, the axis of the axial portion beinginclined with respect to the axis of the urethral-insertion member suchthat a distance of separation between the axis of the axial portion andthe axis of the urethral-insertion member increases or decreases is adistal direction.
 8. The puncture apparatus according to claim 1,wherein the puncture member includes an operation unit operativelyconnected to the puncture member so that operation of the operationmember rotates the puncture member.
 9. The puncture apparatus accordingto claim 1, wherein the puncture needle possesses a distal end portionprovided with a through-hole.
 10. The puncture apparatus according toclaim 1, wherein the urethral insertion portion possesses a tubularshape.
 11. The puncture apparatus according to claim 1, furthercomprising a guide member for guiding the puncture needle.
 12. Apuncture apparatus comprising: a freely rotatable puncture memberpossessing a distal end portion and a proximal end portion, the puncturemember including a bent region at which the puncture member is bent, thedistal end portion of the puncture member including a puncture needlefor puncturing living body tissue as the puncture member is rotatedabout a rotation center to rotate a needle tip of the puncture needletoward the living body tissue to puncture the living body tissue; anelongated insertion member configured to be inserted inside a livingbody so that a near-side of the insertion member is the side of theinsertion member located closer to the rotation center, and the far-sideof the insertion member is the side of the insertion member locatedfarther from the rotation center; and a restriction structure whichrestricts a positional relationship between the puncture member and theinsertion member to position the needle tip of the puncture needle whichis rotating about the rotation center after first puncturing the livingbody tissue on the far-side of the insertion member.
 13. The punctureapparatus according to claim 12, wherein the insertion member is atubular-lumen insertion member sized and configured to be inserted intoa tubular lumen opened in the living body.
 14. The puncture apparatusaccording to claim 12, wherein the insertion member is atissue-insertion member sized and configured to puncture a surface ofthe living body.
 15. The puncture apparatus according to claim 14,wherein the insertion member includes either a depth marker by which aninsertion depth of the insertion member is visually recognizable or adepth marker by which the insertion depth of the insertion member isvisually recognizable under a noninvasive monitoring inside the livingbody.
 16. The puncture apparatus according to claim 12, wherein therestriction structure comprises a supporting member, the puncture memberbeing positioned in a through hole in the supporting member so that boththe proximal end portion and the distal end portion of the puncturemember are positioned outside the supporting member, with the bentportion positioned outside the supporting member on a distal side of thesupporting member, the insertion member being fixed to the supportingmember and extending in a distal direction away from the supportingmember.
 17. The puncture apparatus according to claim 12, wherein therestriction structure comprises a supporting member, the supportingmember including a first supporting portion and a second supportingportion which are connected to one another, the insertion member beingfixed to the first supporting portion and extending in a distaldirection away from the first supporting portion, the puncture memberbeing freely rotatably mounted on the second supporting portion andsupported either in an arc-shaped groove permitting the puncture memberto rotate about the rotation center or on an arc-shaped surfacepermitting the puncture member to rotate about the rotation center. 18.A method of forming a path in living body tissue comprising: insertingan elongated insertion member of a puncture apparatus into a portion ofa living body, the puncture apparatus also including a rotatablepuncture member possessing a distal end portion at which is located aneedle tip; rotating the puncture member in a rotational direction abouta rotation center while the insertion member remains inserted in theliving body to move the puncture member along a path of rotationalmovement, the portion of the living body into which the insertion memberis inserted being located relative to the rotation center of the path ofrotational movement of the puncture member such that a near-side of theinsertion member is the side of the insertion member located closer tothe rotation center, and a far-side of the insertion member is the sideof the insertion member located farther from the rotation center;continuing to rotate the puncture member in the rotational directionabout the rotation center while the insertion member remains inserted inthe living body to cause the needle tip to puncture a surface of theliving body tissue; and restricting a positional relationship of thepuncture member and the insertion member while rotating the puncturemember in the rotational direction to ensure that the path of rotationalmovement of the puncture member passes on the far-side of the insertionmember.
 19. The method according to claim 18, wherein the needle tippunctures the surface of the living body tissue at a first location, themethod further comprising continuing to rotate the puncture member inthe rotational direction until the needle tip penetrates the surface ofthe living body tissue to exit the living body tissue at a secondlocation spaced from the first location.
 20. The method according toclaim 19, further comprising fixing one end of an implant to the needletip after the needle tip exits the living body tissue at the secondlocation.